Please recommend appropriate plugins (1 post)

Hi!
I'm trying to create a website/forum (blog). It will be more like a community website where each user would have his own blog and users will interact via Q\A type of forum in different groups.
The first couple of pages of my web-site would be more like a general info with groups descriptions and other info without posts. And all other pages will be Q\A forum with many pages (each group would contain its own page).
I'm not sure what plugins would suit my requirements best. I want my Q\A pages to look something like that: Name of the group, then on the left side would be subgroups list(or subcategories) and Q\A section would take the remaining space.
At first, I was think using BuddyPress, but I believe it is not in Q\A format, but more like a traditional forum.
Maybe CM answers plugin or AnsPress Plugin?
Can someone recommend me what will be the best option?
Thank you!